Description
The score_opcodes function in opcodes/score7-dis.c in GNU Binutils 2.28 allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted binary file, as demonstrated by mishandling of this file during "objdump -D" execution.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | binutils | 2.29-1 | — |
| Debian 13 | binutils | 2.29-1 | — |
| Debian 12 | binutils | 2.29-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | binutils | 2.26.1-1ubuntu1~16.04.8+esm1 | USN-4336-2 |
| Ubuntu Pro 14.04 LTS | binutils | 2.24-5ubuntu14.2+esm2 | USN-4336-3 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- GNU binutils - 'print_insn_score16' Buffer Overflow EDB-42203 · dos · Jun 19, 2017 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 2
- USN-4336-3 binutils vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-4336-2 binutils vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
References
- https://sourceware.org/bugzilla/show_bug.cgi?id=21576
- GLSA-201709-02 vendor-advisory
- 99105 vdb-entry
- 42203 exploit